package com.itheima.reggie.web;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.IEmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private IEmployeeService employeeService;

    //员工登录
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password= DigestUtils.md5DigestAsHex(password.getBytes());
        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);
        //3、如果没有查询到则返回登录失败结果
        if (emp == null){
            return R.error("用户不存在，登录失败");
        }
        //4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)){
            return R.error("密码错误，登录失败");
        }
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }
        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    //员工退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    //添加员工
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee) {
        log.info("新增员工，员工信息：{}", employee.toString());
        //设置初始密码123456，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        // create_time 和 update_time 和  create_user 和 update_user 自动填充
/*        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        //1.4： create_user 和 update_user 创建人和修改人，应该是当前登陆人，从session中获取
        Long empId =(Long) request.getSession().getAttribute("employee");

        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);*/
        employeeService.save(employee);
        return R.success("新增员工成功");
    }
        //分页条件查询、条件查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        //1.构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //2.构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        //3.添加过滤条件,筛选name
        queryWrapper.like(name!=null&&name!="",Employee::getName,name);
        //4.添加排序条件，降序排序
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //5.执行查询，返回结果R
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

    //根据员工id查询员工信息
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        Employee employee = employeeService.getById(id);
        if (employee==null){
            return R.error("员工不存在");
        }
        return R.success(employee);
    }

    //启用、禁用员工账号,更新员工信息
    @PutMapping
    public R<String> update(@RequestBody Employee employee){
        //调用修改方法
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }


}
